626 Po.MON'A College Joi'rnal of Entomology 



Pupa case — Size about 1.20 by 0.88 mm. Somewhat octahedral in outline, 

 widest at thoracic region, acute cephalad. Color, under hand lens, shining black; 

 under microscope, deep black in color. Covered with a thin, glassy substance. 

 The dorsum with a characteristic keel extending from the cephalic margin to the 

 vasiform orifice. There is in the thoracic region, on each side, a short distance 

 within the margin, a curved, depressed line, extending caudad to about the first 

 abdominal segment. Abdominal segments extending out to marginal rim and 

 strongl}' reflexed caudad. Along the abdominal segments with somewhat trachea- 

 like structures which extend from the thoracic region to the vasiform orifice. 

 Thickened, subovate rim, extending to the vasiform orifice. A pair of setae on 

 the caudal end of the large, thickened, subovate rim. 



Vasiform orifice semicircular, as broad as long; operculum subsemicireular. 

 but larger than broad. 



Habitat — On Tliea japonica I.., at Nishigahara, Tokyo, collected by the 

 author, winter, 1908. 



Type in the entomological collection of the Imperial Agricultural Experiment 

 Station, .(apan. and eotyjje in U. S. N. M. 



Aleyrodes spinosus n. s]). 

 (Figure 208, R-S) 



Pupa case — Size 0.,')2 by 0.(i8 mm. Oval in outline. On the leaf, with iiand 

 lens, shining dark brown, with brown spines projecting in all directions, mainly 

 upwards. Medio-longitudinal ridge on dorsum. Abdominal segments distinct. 

 The lateral fringe is very short or almost wanting. Under microscope pale brown; 

 margin finely crenulated; tiie arrangement and comparative length of spines is 

 shown in the figures. 



Vasiform orifice sni.ill, sulicireular. but l)riiadrr than long, bounded by a 

 chitinized band; operculum subsemicireular. hut longer than brcnad ; lingula 

 obsecure. 



Habitat — The host is unknown. This species was found by the writer among 

 Coccidie from Formosa, lyof). 



Type in the entomological collection of Imperial Agricultural Experiment 

 Station, Japan, and cotype in U. S. N. M. (Nishigahara, Tokyo, August, 1911.) 



Explanation of Figures 



Figure 207 



A, Aleyrodes shisokaensis, Pupa-case 



B, Aleyrodes shisokaetisis, Det;iil of marginal rim of pupa-case. 



C, Aleyrodes shisokaensis, Vasiform orifice of pupa-case. 



D, Aleyrodes shisokaensis, Forewing. 



E, Aleyrodes shisokaensis, Male genitalis. 



F, Aleyrodes iokyouis. Pupa-case 



G, Aleyrodes tokyonis, Vasiform orifice of pupa-case. 



H, Aleyrodes tokyonis, Marking of skin about vasiform orifice. 



